Development and Validation of a Screening Method for DES, Zeranol, and -Zearalanol in Bovine Urine by HRGC-MS and Evaluation of Robustness for Routine Survey of the Brazilian Herd | Zendy

Marlice A. Sı́poli Marques | Zendy; Luiz Antônio Pugliesi Alves de Lima | Zendy; Carlos Henrique Brasil Bizarri | Zendy; Francisco Radler de Aquino Neto | Zendy; Jarí N. Cardoso | Zendy

Open Access

Development and Validation of a Screening Method for DES, Zeranol, and -Zearalanol in Bovine Urine by HRGC-MS and Evaluation of Robustness for Routine Survey of the Brazilian Herd

Author(s) -

Marlice A. Sı́poli Marques,

Luiz Antônio Pugliesi Alves de Lima,

Carlos Henrique Brasil Bizarri,

Francisco Radler de Aquino Neto,

Jarí N. Cardoso

Publication year - 1998

Publication title -

journal of analytical toxicology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.161

H-Index - 76

eISSN - 1945-2403

pISSN - 0146-4760

DOI - 10.1093/jat/22.5.367

Subject(s) - zeranol , chromatography , urine , chemistry , herd , biology , zoology , biochemistry

A method and evaluated for screening and confirmation of diethylstilbestrol (DES), alpha- and beta-zearalanol in bovine urine was developed. The residues were extracted from urine by C18 cartridges and purified on alumina columns. For screening and confirmation purposes, the anabolic derivatives were analyzed by gas chromatography-mass spectrometry after derivatization with BSTFA + 1% TMCS or a solution of PFPA/acetone (1:2, v/v), respectively. The recovery of most analytes for the whole procedure was higher than 96%, with a detection limit of 0.5 ppb. This procedure is being routinely applied to the Brazilian National Program for the Control of Residues in Meat (PNCRBC).

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